Santiago Calatrava is an architect, artist, and engineer known for incorporating natural forms and the unity of art and science into his works. Some of his most notable projects include the City of Arts and Sciences in Valencia, the Athens Olympic Sports Complex, and the Milwaukee Art Museum. The Turning Torso in Malmo, Sweden is one of Calatrava's most distinctive buildings. At 190 meters tall, it is the tallest building in Scandinavia and consists of nine twisting cubes with a central reinforced concrete core. The twisting design was inspired by the human form and the steel exterior provides structure.